公开(公告)号：US4449838A

公开(公告)日：1984-05-22

申请号：US402806

申请日：1982-07-28

申请人： Yasushi Okamura ,  Harukazu Manabe ,  Norihide Sato

发明人： Yasushi Okamura ,  Harukazu Manabe ,  Norihide Sato

IPC分类号： B41J32/02 ,  B41J35/08

CPC分类号： B41J32/02 ,  B41J35/08

摘要： An ink ribbon cassette for impact type printers comprises an ink roller of plastic sponge impregnated with ink and an endless type ink ribbon contacting with the ink roller. The ink ribbon is provided with a proper tension by a leaf spring member. At the time of assembly, the pressure of the leaf spring on the ribbon is not yet impressed. After the setting of ribbon, the bow-shaped leaf spring is reversed to opposite side in a snap action, being pushed from the outside, thereby to impress the tension. In another example, when the ink volume impregnated in the ink ribbon decreases after long use of the cassette, pressure is applied to the ink roller by the spring member, by changing the side of it bow part and squeezing ink to transfer to the ink ribbon, thereby prolonging the service time of the ink ribbon.

摘要翻译： 用于冲击式打印机的色带盒包括浸渍有油墨的塑料海绵的墨辊和与墨辊接触的环形墨盒。 墨带由片簧构件提供适当的张力。 在组装时，丝带上的板簧压力尚未印证。 在设置色带之后，弓形板簧在快动作中被反向到相对侧，从外部推动，从而使张力受到打击。 在另一个实例中，当长时间使用墨盒后，浸渍在墨带中的墨水体积减小时，通过弹簧部件对墨辊施加压力，通过改变其弓形部分的侧面并挤压墨水以转移到墨带 从而延长墨带的使用时间。